Chemical Engineering MCQs

Page No. 14

Which is a regenerative furnace ?


aCoke oven heating chamber


bOpen hearth furnace


cBoth A. and B.


dNeither A. nor B.


View Answer Both A. and B.

Fertiliser produced during soda ash manufacture by dual process is ammonium______________________?


a Chloride


b Sulphate


cNitrate


dNone of these


View Answer Chloride

In order to maintain an oxidising atmosphere in a furnace, it should have__________________?


aMore of excess air


bLess of excess air


cMore of CO in flue gas


dMore of CO2 in flue gas


View Answer More of excess air

Electric process as compared to wet process (for the manufacture of phosphoric acid) ?


aCan use only high grade phosphate rock


bIs used less frequently


cProduces a valuable by-product called gypsum


dIs weak acid process



Rock phosphate constitutes mainly of___________________?


aFluorapatite


bDi-calcium phosphate


cMono-calcium phosphate


d Di-ammonium phosphate


View Answer Fluorapatite

Pick out the wrong statement ?


aMomentum transfer in laminar flow results from velocity gradient


bA fluid in equilibrium is not free from shear stress


cThe viscosity of a non-Newtonian fluid is a function of temperature only


dBoth B. and C.


View Answer Both B. and C.

Iron is not used alone as a catalyst in ammonia synthesis, because___________________?


aIts activity declines rapidly, if heated to above 520°C


bIt decomposes ammonia


cIt gets oxidised above 500°C


dNone of these



Heat transfer rate to the stock/charge in the furnace does not depend upon the________________?


aEmissivity of the refractory walls


bSize of the furnace


cUse of waste heat recovery equipments


dThickness of the stock



Pick out the correct statement?


aA forced vortex occurs when fluid rotates as a solid about an axis


bIn laminar flow, Newton’s law of viscosity does not apply


cA free vortex occurs, when fluid rotates as a solid


dIn turbulent flow, there are neither cross-currents nor eddies



Phosphoric acid is produced in wet process from phosphate rock and____________________?


a Dilute H2SO4


bConcentrated H2SO4


cConcentrated NHO3


dConcentrated HCl


View Answer Dilute H2SO4

Goto Page No.

Page 14 of 843

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan